CVE-2026-31626 (GCVE-0-2026-31626)
Vulnerability from cvelistv5
Published
2026-04-24 14:42
Modified
2026-04-27 14:04
Severity ?
7.1 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify() Initialize le_tmp64 to zero in rtw_BIP_verify() to prevent using uninitialized data. Smatch warns that only 6 bytes are copied to this 8-byte (u64) variable, leaving the last two bytes uninitialized: drivers/staging/rtl8723bs/core/rtw_security.c:1308 rtw_BIP_verify() warn: not copying enough bytes for '&le_tmp64' (8 vs 6 bytes) Initializing the variable at the start of the function fixes this warning and ensures predictable behavior.
References
Impacted products
Vendor Product Version
Linux Linux Version: 554c0a3abf216c991c5ebddcdb2c08689ecd290b
Version: 554c0a3abf216c991c5ebddcdb2c08689ecd290b
Version: 554c0a3abf216c991c5ebddcdb2c08689ecd290b
Version: 554c0a3abf216c991c5ebddcdb2c08689ecd290b
Version: 554c0a3abf216c991c5ebddcdb2c08689ecd290b
Version: 554c0a3abf216c991c5ebddcdb2c08689ecd290b
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{
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()\n\nInitialize le_tmp64 to zero in rtw_BIP_verify() to prevent using\nuninitialized data.\n\nSmatch warns that only 6 bytes are copied to this 8-byte (u64)\nvariable, leaving the last two bytes uninitialized:\n\ndrivers/staging/rtl8723bs/core/rtw_security.c:1308 rtw_BIP_verify()\nwarn: not copying enough bytes for \u0027\u0026le_tmp64\u0027 (8 vs 6 bytes)\n\nInitializing the variable at the start of the function fixes this\nwarning and ensures predictable behavior."
        }
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.1"
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "url": "https://git.kernel.org/stable/c/d5b8f5f8d6fc09a8af5ed139c688660f578ed732"
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        },
        {
          "url": "https://git.kernel.org/stable/c/8c964b82a4e97ec7f25e17b803ee196009b38a57"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31626",
    "datePublished": "2026-04-24T14:42:47.493Z",
    "dateReserved": "2026-03-09T15:48:24.124Z",
    "dateUpdated": "2026-04-27T14:04:27.765Z",
    "state": "PUBLISHED"
  },
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}


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